html, body {
    height: 100%;
    background: #c2b195;
}

.wrap {
    position: relative;
    height: 100%;
}

.page-header {
    position: absolute;
    width: 100%;
    top: 0;
}

.page-header p {
    line-height: 42px;
    font-size: 12px;
    color: #7a6f5f;
    padding-left: 16px;
}

.page-wrap {
    position: absolute;
    top: 42px;
    bottom: 18px;
    width: 100%;
    overflow: hidden;
}

.page-content {
    margin: 0 10px;
    height: 100%;
    -overflow-y: auto;

    columns: calc(100vw - 32px) 1;
    column-gap: 16px;
    
    -webkit-transition: transform 0.3s;
    
    font-size: 16px;
    
    font-family: SimSun;
}

.page-content h3 {
    margin: 0.75em 0;
    font-size: 1.5em;
    color: rgba(0,0,0,0.85);
}

.page-content p {
    font-size: 1em;
    margin: 0.1em 0;
    line-height: 1.8;
    text-align: justify;
    text-indent: 2em;
    color: rgba(0,0,0,0.85);
}

.page-num {
    position: absolute;
    bottom: 0;
    width: 100%;
}

.page-num span {
    line-height: 18px;
    font-size: 12px;
    color: #76694f;
    padding-left: 17px;
}